{
  "id": "hep-ph/9803407",
  "version": "v1",
  "published": "1998-03-20T16:53:34.000Z",
  "updated": "1998-03-20T16:53:34.000Z",
  "title": "Hadron Spectra and Spectral Moments in the Decay B \\to X_s \\ell^+ \\ell^- using HQET",
  "authors": [
    "A. Ali",
    "G. Hiller"
  ],
  "comment": "10 pages, 1 figure (require epsf.sty)",
  "journal": "Phys.Rev.D58:071501,1998",
  "doi": "10.1103/PhysRevD.58.071501",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We compute the leading order (in alpha_s) perturbative QCD and power (1/m_b^2) corrections to the hadronic invariant mass and hadron energy spectra in the decay B \\to X_s \\ell^+ \\ell^- in standard model using the heavy quark expansion technique (HQET). Results for the first two hadronic moments < S_H^n> and <E_H^n>, n=1,2, are presented here working out their sensitivity on the HQET parameters lambda_1 and \\bar{\\Lambda}. Data from the forthcoming B facilities can be used to measure the short-distance contribution in B \\to X_s \\ell^+ \\ell^- and determine the HQET parameters from the moments <S_H^n>. This can be combined with the analysis of semileptonic decays B \\to X \\ell \\nu_\\ell to determine them precisely.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1998-03-20T16:53:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "hadron spectra",
      "spectral moments",
      "heavy quark expansion technique",
      "hqet parameters",
      "hadronic invariant mass"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 468392
    }
  }
}